请教未曾老师，Smithsonian’s National Museum of Asian Art项下图片下载问题。

Smithsonian协会下一文物图片，具体地址为：https://www.si.edu/object/plaque-taotie:fsg_S2012.9.569

无法直接下载高清大图，通过yaml编写

url_template: "https://ids.si.edu/ids/viewTile/node2/A/f7a/f7aeaa14ffb50e706dc2ab583450b83c/512/11/{{x}}_{{y}}.jpg"
x_template: "x * tile_size"
y_template: "y * tile_size"
variables:
- { name: x, from: 0, to: 2} # Number of tiles on the x axis
- { name: y, from: 0, to: 3} # Number of tiles on the y axis
- { name: tile_size, value: 256 }
headers:
Referer: "https://ids.si.edu"

但下载到的图片是错乱的

进入mirador viewer，找到info.json（https://ids.si.edu/ids/iiif/FS-8174_05/info.json）， 下载到的图片也是全黑，请问@未曾 老师如何解决，感谢！